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J. N. RICHARDSON.

HOUSEHOLD FURNACE.

APPLICATION FILED OCT. I5, 1915.

1,309,269. Patented July 8, 1919.

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J. N. RICHARDSON.

HOUSEHOLD FURNACE.

APPLlcATioN FILED OCT-15. I915.

1 ,309,280a Patented July 8, 1919.

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UNTTET) STATES PATENT OFFICE,

JOHN N. RICHARDSON, OF CINCINNATI, OHIO, ASSIGNOR TO THE WILLIAMSONHEATER COMPANY, OF CINCINNATI, GHIO, A CORPORATION OF OHIO.

HGUSEI-IOLD-FUENACE.

Application filed. October 15, 1915.

To all whom it may concern:

Be it known that 1, JOHN N. RICHARDSON, a citizen of the United States,and residing at Cincinnati, in the county of Hamilton and State of Ohio,have invented a new and useful Improvement in Household-Furnaces, ofwhich the following specification is a full disclosure.

My invention relates to an improvement in a house heating furnace.

One of the objects of the invention is to increase the cubic dimensionsof the radiator, without adding to the height of the furnace structure,and hence to increase the heating efficiency by increasing the area ofradiator surface in the hot-air jacket formed between the furnace properand its casing.

Another object of the invention is to improve the radiator structure.

Another object of the invention is to provide a radiator structureadapted to receive and to coordinate with a radiator cleaner mechanism,of simple and durable construction and operation.

Another object of the invention is to establish a controllablecommunication between the radiator and ash-pit, which will usefullyfunction for either cleaning the radiator, or when shaking ash into theashit. p Another object of the invention is to provide an effectiveradiator cleaner, self-com tained within the radiator, and which can beused while the furnace is in full heat.

Another object of the invention is to so construct and coordinate thisradiator, cleanout and ash-pit, that they can be conveniently installedwith reference to the limitations and requirement of a particularbasement lay-out, as, for instance, the relative furnace dispositiondepends upon the convenient place for putting in the fuel, and thefurnace must be placed to register its smoke outlet with the chimneyoutlet in the basement.

The features of the invention are more fully set forth in thedescription of the accompanying drawings, forming a part of thisspecification, in which Figure 1 is a vertical transverse sectionthrough the furnace.

Fig. 2 is a perspective view of the radia tor sweeper,

Fig. 3 is a plan section on line 2-2, Fig. 1.

Specification of Letters Patent.

Patented July 8, 1919.,

Serial No. 55,921.

Fig. 1 is a vertical section of the radiator on line H, Fig. 3,

The ash-pit 1, fire-pot 2, combustion chamher 3, radiator 1 and casing 5are conventionally arranged, though the ash-pit, radiator, and easinghave unique structural formations designed to effect the stated objectsof the invention,

The radiator, (see Fig. 3), has the central chamber 6, over thecombustion chamber, the circumferential portion 7, which provides theradiating surface area in the hota1r jacket space 8, the radialpassage-way 9 between chambers 6 and 7, and the radial reinforcing webs10. The floor 11, of pas sageway 9, is raised above the horizontal planeof the top of the combustion chamher, and the chamber portion 6 has thedepending annulus 12, fitting in the grooved ring 13, of the combustionchamber, enabling the radiator to be eircumferentially adjusted duringinstallation, to properly position the outlet 14C, for escaping productsof combustion from the radiator, with reference to the smoke-stackposition in the basement.

The floor 15, of the radiator circumferential portion, is dropped belowthe floor 11, thus relatively enlarging the radiator dimensions withoutadding to the height of the furnace. This dropping of the floor 15,relative to floor 11, also provides a base recess chamber in thecircumferential portion of the radiator, below the plane in which theproducts of combustion enter the said circumferential portion, in whichthe radiator clean-out mechanism can be perm anontly contained withoutbeing exposed to the extreme heat zone of the passageway 9. Within thisradiator subrecess 16, and resting on floor 15, is placed the double-endsweeper 17, which is an I-beam shaped casting, having the eyes 18, ateach end for attachment of the operating chains 19. There may he asingle chain, or two chains, the inner ends of which are attached to theopposite heads of the sweeper, and the outer ends pass through theradiator opening 20, and lie in an inclosed compartment 21 in thehot-air jacket space, to which access is had through the exterior door22. The floor 15 of the radiator, at this point of chain emergence, hasthe cut-out portion 23, from which pipe 24 extends downwardly to theash-pit, communicating with an aslrpit opening 25. and this pipe has adamper control 26.

The floor of the radiator is formed with two or more such openings 23,the one not in use being covered over, or the floor metal may be thinlycored enabling one opening to be broken through for pipe 24, dependingon the radiator adjustment. The radiator opening 23 not used ispreferably closed by a cover 23*.

Preferably I form the ash-pit casting with a plurality of thinly coredsections 27, any one of which can be broken through to form an opening25, for pipe 2st, depending on the particular circumferential adjustmentof the radiator, or, the openings can be completely formed, and all butthe selected opening capped over, the availability of the selection ofone of several possible openings being the desideratum.

And I may provide the radiator with a plurality of ports for chainemergence and cleaning drop, those being selected during installationwhich approximately register with the particular ash-pit openingprovision indicated by the particular radiator adjustment, and the otherradiator openings can be closed by a plate or door, furnished for suchpurpose.

Preferably, also, I provide a door 28 for cleaning off the floor 11 ofthe radiator passage-way 9.

WVhen it is desired to clean the radiator, the door to compartment 21 isopened, and the attendant can take a wire hook for holding an outer endof the chain and draw the sweeper entirely around the floor of theradiator, pushing the deposit before it, and dumping it into pipe 2a,whence, the damper being open, it will drop into the ash-pit, and bythen pulling the sweeper in the other direction, by manipulating theother chain end, the floor will be swept in the reverse direction.

Also, the damper can be opened when shaking the grate-bar, so that theimpalpable dust and ash will be drawn into the radiator by the slight updraft, and so kept from flying into the face of the attendant andescaping into the basement.

Not only can the cellar be kept much cleaner by this means, but the fullefiiciency of the radiator can be maintained by cleaning the radiator asoften as deposit accumulates appreciably in the radiator. The cleaningmechanism is always accessible, being self-contained and can be easilymanipulated, without the danger of the attendant being burned or soiled.

It is also a great advantage to have this selective provision, so thatthe pipe 2% can be connected up during installation to estab lishcommunication between the radiator and ash-pit at a point made necessaryby the radiator adjustment.

By means of this clean-out provision, and. the extended radiatorsurface, the heating efficiency is materially increased and can beuniformly maintained.

I claim 1. In a hot air furnace comprising a furnace body having acombustion chamber and ash pit, an annular radiator on the combustionchamber through which the combustion products pass, a casing surroundingsaid body and radiator, the radiator being formed with an opening in thefloor and an adjacent opening in the wall, the ash pit wall being alsoformed with an opening, a conduit between said body and easing leadingfrom said radiator floor opening to the ash pit wall opening, a hollowmember supported by the outer casing and extending inwardly intoregistration with said radiator wall opening and having an outer doorforming a compartment between the body and casing adjacent the radiator,a sweeper on the floor of the radiator, and a chain device in theradiator attached to said sweeper and having an operating portiondisposed in said inclosed chamber.

2. A hot-air furnace combining a fire box, an annular radiator arrangedthereabove and connected by a flue to receive the prodacts of combustiontherefrom, said radiator being provided with a door and also with a trapfor the discharge of fine dust, a sweeper located in said radiator, achain leading in opposite directions from said door to said sweeperwhereby it may be caused to travel in either direction circumferentiallywithin said radiator by manipulating said chain through said door, andmeans for making a conduit connector between the radiator floor-andash-pit wall at a point determined by the conditions of installation.

3. A hot-air furnace combining an annular shell forming the wall of anash pit and having in its circumference a number of dummy ports, afurnace body overlying said ash pit and providing a fire box andcombustion chamber, a radiator circumscribing said furnace body, and alshaving in its floor a number of dummy ports, and a chute adapted to beinterchangeably connected between any of the adjacent lower and upperports to constitute a bypass for the escape of dust during the shakingof the furnace, and also for accumulated flue dust from the radiatorinto the ash-pit.

a. A hot-air furnace combining a furnace body providing a lower annularwall forming an ash pit and having a number of dummy ports, an annularradiator carried by said furnace body, and having in its floor a numberof dummy openings and in its outer circumferential wall dummy openingsadjacent thereto, a sheet metal shell inclosing the aforesaid ports, adoor frame adapted to be interfitted with any one of the last my name,as attested by the two subscribing mentioned dummy ports to permitaccess to witnesses. said radiator from the exterior of said s 1e11, Tand a dust chute leading from the port ad JOHN RIGHARDSOL' 5 jacent saidframe to the nearest underlying Witnesses:

pert in the Wall of the ash pit. A: W. WILLIAMSON,

In Witness whereof, I hereunto subscribe GEORGE A. I-IERMANN.

Gopies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washingten, 1?. S.

